JP6156879B2 - 溶融塩電解槽 - Google Patents
溶融塩電解槽 Download PDFInfo
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- JP6156879B2 JP6156879B2 JP2014014282A JP2014014282A JP6156879B2 JP 6156879 B2 JP6156879 B2 JP 6156879B2 JP 2014014282 A JP2014014282 A JP 2014014282A JP 2014014282 A JP2014014282 A JP 2014014282A JP 6156879 B2 JP6156879 B2 JP 6156879B2
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- Prior art keywords
- molten salt
- control system
- bath surface
- surface level
- level
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- 150000003839 salts Chemical class 0.000 title claims description 87
- 239000011261 inert gas Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 238000005086 pumping Methods 0.000 claims description 23
- 230000007423 decrease Effects 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 description 25
- 238000005868 electrolysis reaction Methods 0.000 description 19
- 239000007789 gas Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 239000012535 impurity Substances 0.000 description 15
- 238000011109 contamination Methods 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000011449 brick Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000010936 titanium Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 230000004043 responsiveness Effects 0.000 description 6
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229910001629 magnesium chloride Inorganic materials 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910020056 Mg3N2 Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 235000015598 salt intake Nutrition 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Landscapes
- Electrolytic Production Of Metals (AREA)
Description
2 溶融塩
3 隔壁
4 電解室
5 Mg回収室
6 陽極
7 陰極
11 開口部
12 無底容器状の構造物
13 熱交換器
14 温度計
15 レベル計
16 Mg層
17,18 縦管
20 不活性ガス供給系
20A 精密制御系
20B 高速制御系
21A,21B ガス供給管
22A 流量制御弁
22B 流路開閉弁(オン・オフ制御弁)
30 不活性ガス排出系
31 ガス排出管
32 流路開閉弁(オン・オフ制御弁)
40 制御器
Claims (6)
- 浴面レベル維持のために浴面下に設置された容器状の構造物内に不活性ガスを供給し、また前記構造物内から不活性ガスを排出することにより、浴面レベルを調整する浴面調整装置を装備した溶融塩電解槽であって、
前記構造物内へ不活性ガスを供給する不活性ガス供給系として、通常操業時に溶融塩の電解消費による浴面レベル低下を補う際に不活性ガス供給量を制御して浴面レベルの変動を抑制する精密制御系と、
電解生成金属の汲み出し作業に伴う浴面レベルの異常低下時に不活性ガス供給量を急増させて浴面レベルを回復させる高速制御系とを具備する溶融塩電解槽。 - 請求項1に記載の溶融塩電解槽において、精密制御系と高速制御系とが切替え可能である溶融塩電解槽。
- 請求項2に記載の溶融塩電解槽において、精密制御系と高速制御系との切替えが浴面レベルの測定値に基づいて自動で行われる溶融塩電解槽。
- 請求項3に記載の溶融塩電解槽において、浴面レベルの基準レベルに対するレベル偏差が基準値より大となったときに精密制御系から急速制御系への切替えが自動で行われ、前記レベル偏差が基準値より小となったときに急速制御系から精密制御系への切替えが自動で行われる溶融塩電解槽。
- 請求項1〜4の何れかに記載の溶融塩電解槽において、精密制御系と高速制御系とは、前者が流量制御弁を有し、後者が流路開閉弁を有する二つの独立した配管系統により構成されている溶融塩電解槽。
- 請求項1〜4の何れかに記載の溶融塩電解槽において、精密制御系と高速制御系とは、流量制御弁に対して流路開閉弁をパイパス経路として設けることにより構成されている溶融塩電解槽。
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JP2014014282A JP6156879B2 (ja) | 2014-01-29 | 2014-01-29 | 溶融塩電解槽 |
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JP2014014282A JP6156879B2 (ja) | 2014-01-29 | 2014-01-29 | 溶融塩電解槽 |
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JP2015140459A JP2015140459A (ja) | 2015-08-03 |
JP6156879B2 true JP6156879B2 (ja) | 2017-07-05 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107287619B (zh) * | 2017-06-30 | 2018-12-28 | 洛阳双瑞万基钛业有限公司 | 一种温度与液位联合调节装置及应用该装置的镁电解槽 |
JP7043275B2 (ja) * | 2018-02-02 | 2022-03-29 | 東邦チタニウム株式会社 | 溶融塩電解方法、溶融金属の製造方法および、溶融塩電解槽 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58161788A (ja) * | 1982-03-16 | 1983-09-26 | Hiroshi Ishizuka | MgCl↓2用電解装置 |
US4514269A (en) * | 1982-08-06 | 1985-04-30 | Alcan International Limited | Metal production by electrolysis of a molten electrolyte |
JPS61186489A (ja) * | 1985-02-13 | 1986-08-20 | Hiroshi Ishizuka | アルカリ金属または土金属の溶融塩化物電解装置 |
JP3234979B2 (ja) * | 1999-02-08 | 2001-12-04 | 株式会社住友シチックス尼崎 | 溶融塩浴の浴温・浴面レベル制御装置 |
JP3865044B2 (ja) * | 2001-04-18 | 2007-01-10 | 住友チタニウム株式会社 | 溶融塩電解方法 |
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